The Narrow Field telescope on board the ASTENA mission (Conference Presentation)

Enrico Virgilli; Piero Rosati; Filippo Frontera; Ezio Caroli; Lorenzo Amati; John B. Stephen; Natalia Auricchio; Cristiano Guidorzi; Mauro Orlandini; Loredana Bassani; Angela Malizia; Stefano Silvestri; Angelo Basili; Irfan Kuvvetli; Carl Budtz-Jørgensen; Rui Curado Da Silva; Claudio Labanti; Fabio Fuschino; Riccardo Campana; Soren Brandt

doi:10.1117/12.2314463

10 July 2018 The Narrow Field telescope on board the ASTENA mission (Conference Presentation)

Enrico Virgilli, Piero Rosati, Filippo Frontera, Ezio Caroli, Lorenzo Amati, John B. Stephen, Natalia Auricchio, Cristiano Guidorzi, Mauro Orlandini, Loredana Bassani, Angela Malizia, Stefano Silvestri, Angelo Basili, Irfan Kuvvetli, Carl Budtz-Jørgensen, Rui Curado Da Silva, Claudio Labanti, Fabio Fuschino, Riccardo Campana, Soren Brandt

Author Affiliations +

Proceedings Volume 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray; 106992N (2018) https://doi.org/10.1117/12.2314463
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The ASTENA mission, conceived within the AHEAD framework, consists of two coaligned instruments, a broad band Wide Field Monitor/Spectrometer WFM/S and a broad band Narrow Field Telescope (NFT). In the NFT a large geometric area Laue lens (3 m maximum diameter with a 20 m focal length) allows to focus the radiation of the 50 - 700 keV energy pass-band. Differently from other proposed Laue lenses in the past, the NFT is made of optimized thickness bent crystal tiles, made with Silicon (for the lower energy part of the lens pass-band) and Germanium (dedicated to the upper energy threshold). With these assumption we have optimized the NFT Field of View (FoV) to 3.5 arcmin with the angular resolution of 20”. The Laue lens is coupled with a high efficiency (>80% above 600 keV) focal plane position sensitive detector, with 3D spatial resolution of at least 300 µm in the (X,Y) plane and fine spectroscopic response (1% @511 keV) and with polarization sensitivity. In this SPIE contribution we will discuss the NFI geometry simulated with the MEGAlib toolkit and we will discuss its performances by simulating broad band and narrow energy typical sources, giving finally the instrument performances.

Conference Presentation

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Enrico Virgilli, Piero Rosati, Filippo Frontera, Ezio Caroli, Lorenzo Amati, John B. Stephen, Natalia Auricchio, Cristiano Guidorzi, Mauro Orlandini, Loredana Bassani, Angela Malizia, Stefano Silvestri, Angelo Basili, Irfan Kuvvetli, Carl Budtz-Jørgensen, Rui Curado Da Silva, Claudio Labanti, Fabio Fuschino, Riccardo Campana, and Soren Brandt "The Narrow Field telescope on board the ASTENA mission (Conference Presentation)", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106992N (10 July 2018); https://doi.org/10.1117/12.2314463

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KEYWORDS

Telescopes

Device simulation

Spatial resolution

Crystals

Germanium

Polarization

Sensors

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